Louver



H. WEINBERG v 2,265,881*v LOUVER Filed Feb. 24, 193s ATTORNEY.

Patented Dee. 9, 1941 Y STAT OFFICE 3 Claims.

This invention relates to an improved louver.

My invention has for one of its objects the provision of a simple and highly efficient self-contained louver, especially well adapted for installation in the wall of buildings', as apartments and the like. Y

Another object contemplated by the invention is the novel arrangement of baffles with intervening spaces therebetween which latter, when opened for purposes o-f ventilation, reduce to a minimum the entrance therethrough of rain, snow, sleet, dus-t and the like.

Still another object of the invention is the structural arrangement of the damper for opening or closing the spaces between the baltespositively insuring against accidental displacement of the damper in either position when once set or adjusted.

To the above end, generally stated, the invention consists of the novel devices and combination of devices hereinafter described and set up in the claims.

In the accompanying drawing, which illustrates the invention, like characters indicate like parts throughout the several views.

Referring to the drawing- Fig. 1 is a perspective View of the front or exterior of the louver showing the damper open.

Fig. 2 is a transverse sectional view in perspective taken along lines 2-2 of Fig. l-the damper being closed.

Fig. 3 is a vertical sectional view taken along lines 3 3 of Fig. 1, and

Fig. 4 is a fragmentary transverse section taken along lines 4 4 of Fig. l.

Referring more particularly to the drawing, it will be noted that the operative mechanism is contained in a rectangular frame, denoted generally by the reference character 5, and which comprises top and bottom cross-pieces 6 and I, and vertical connecting members 3 and S-all of these being suitably flanged to facilitate installation of the unit in a wall.

Disposed transversely between the vertical members 8 and 9 are a series of integral parallel baffles I0. Excepting the top and bottom baffles, all are of the same construction, each having oppositely disposed vertical extensions II and I2 with an intermediate oblique portion I 3-and each of the extensions II and I2 being provided with inwardly and outwardly projecting horizontal anges I4 and I5. The baffles are equally spaced with respect to each other to provide openings I6 and they are otherwise arranged in parallelism so that flanges I4 and I5 of each baffle occupy a staggered position in relation to the flanges of the adjacent baie. Top and bottom baies are similar in construction to the intermediate baffles just described only they have a single flange Il and are merged into their respective cross-pieces Ii and 'I'.

The purpose of the particular setup of the baffles `is to allow for proper ventilation and at the same time preclude, as far as possible, the entrance of rain, sleet, snow, dust and the like into the interior of the building.

Along opposite sides of the front of the vertical members 8 and 9 are tracks I8 upon which a damper, denoted generally at I9, is designed to move. Each track consists of two parallel oppositely disposed flanges 26 and 2| with an intermediate connecting portion 22-the outer flange 2e being looped at 23'and having its marginal edge 2d bent upon itself. The tracks so formed are designed to receive complemental angular slides 2% to which is integrally secured a plurality of transverse slats 26 of the damper-the cuter edges of the slides operating in the loop 23 and sustained therein by frictional engagement of the inturned portion 2G. A manipulating bar 2l, with a notch 28 at its lower extremity, also extends perpendicularly across the slots and is soldered or otherwise rigidly fastened thereto.

The construction and disposition of each slat is important. As best seen in Figs. 2 and 3, each slat has its opposite longitudinal marginal edges 29 turned over upon themselves, and these edges occupy a slightly nested relationship with respect to the outer edge of the intermediate oblique portion I3 and the outer edge of the flange I4 of the adjacent baffles I0. Such is the relationship of the slats and baflles when the louver is closed, as exhibited in Fig. 2. This arrangement not only serves to seal the spaces between the bafles, but due to the flexibility of the sheet metal of which the slats are constructed, enables the damper to be pulled outwardly to a slight degree through the medium of bar 2l so that the confronting faces of the edges of each slat and the face of portions I I of the bale will lie in close contact with each other. Then as the damper is constrained to its open position, as best seen in Figs. 3 and 4, this frictional contact is preserved.

Briefly, when the damper is closed slats 26 are approximately flush with the baffles; and when open, ride over the edges of the baflles and assume a position in parallelism with the faces of the baiiies.

If desired, each slat 26 may be formed with a reinforcing rib 3U.

It follows that in closed position the slats of the damper, because of their nesting between the edges of the bailies, stay closed and resist any tendency to open; and because of the augmented frictional contact of the slats with the faces Il of the louvers, when open, conversely, eectively resist any tendency to close-thus avoiding the nuisance and inconvenience of repeatedly adjusting the louver. It will be understood that a louver of this type usually requires appropriate adjustment a few times during the year, and then must be operated preferably from a remote point with a stick or pole having a hooked terminal. The terminal of the pole is engaged with notch 28 of the manipulating piece 21 and forced downwardly to close the damper, and placed beneath the bottom edge of piece 21, and then pulled upwardly to open the damper. The opening and closing operations are facilitated by the application of a little force coupled with the facts that the edges of the baffles and the damper are rounded, and that the metal of the damper is resilient-the damper being sprung slightly outward and riding over the baffles when it is desired to open the louver, and the damper being constrained in the opposite direction until the same lies between the baiiies when it springs back in nested relationship to close the louver.

The louver in its entirety is constructed of any suitable sheet metal, and because of its simplicity may be manufactured in quantities at minimum cost.

It should be understood that in its broader aspects the invention comprises not only the various means described but similar means for performing the recited functions. For example, While the disclosure herein shows a rectangular frame, the shape of the frame may be varied at will. It is desired to reserve the right tomake such changes or modications as may come fairly Within the scope of the appended claims.

I claim:

1. A louver comprising a frame, bailles xedly spaced across said frame and having their lower longitudinal edges inclined upwardly and outwardly, a damper slidable transversely of the bales for opening or closing the spaces therebetween, tracks incorporated in said frame, angular slides maintained in place by the tracks, resilient slats carried by the slides, the slats having their longitudinal edges rounded and being of a width substantially equal to the spaces between the baffles, and said slats being approximately in the same plane with the baiiies when the damper is closed and being sprung laterally and riding over the edges of the baies when the latter are moved vertically.

2. A louver comprising a frame, baiiles xedly spaced across said frame, a damper slidable transversely of the bales for opening or closing the spaces between the ballles, tracks incorporated in said frame, angular slides maintained in place by the tracks, resilient slats carried by the slides, the slats having their longitudinal edges rounded and being of a width substantially equal to the spaces between the baiiles, and said slats being approximately in the same plane with the bailes when the damper is closed and being sprung laterally and riding over the edges of the baffles when the latter are moved vertically.

3. A louver comprising a quadrilateral frame having each of its opposite vertical sides provided with a track, each track being substantially double L-shaped in cross section, stationary bafes arranged at intervals across the frame and having their lower longitudinal edges inclined upwardly and outwardly, a damper slidable transversely of said baiiles for opening and closing the spaces therebetween, the damper being provided with an extension along each vertical marginal edge, said extensions having contours coinciding with the cross sectional shape of said tracks and intimately engageable throughout their Zones of angularity with the tracks, resilient slats carried by the extensions, the slats having their longitudinal edges rounded and being of a width substantially equal to the spaces between the bailles, and said slats being approximately in the same plane with the baiTles when the damper is closed and being sprung laterally and riding over the edges of the baffes when the latter are moved vertically.

HEIMAN WEIN BERG. 

